OIL-HYDRAULIC PRESSES WITH TWO UPRIGHTS
OPERATION AND MAINTENANCE MANUAL
20
"KNOCKOUT DOWN” (57SB20) green button: when pressed this activates the downstroke of the knockout
cylinder as far as the end-of-stroke position; the function switch should be in adjustment position.
To command ejector downstroke, it is necessary that the slide is at TDC and ejector operation is enabled (see
“EJECTOR PROGRAMMING” page); furthermore, the “EJECTOR ENABLING” selector located on the control
push-button panel must be turned towards the right.
"BLANK-HOLDER UP" (108SB15) green button: when pressed this activates the upstroke of the cushion up
until the T.D.C. cam; the functioning switch should be in adjustment position.
"BLANK-HOLDER DOWN" (108SB16) green button: when pressed this activates the downstroke of the cushion
as far as the end-of-stroke position; the function switch should be in adjustment position.
“DIE PISTON” (113SA5) key selector: when turned to the left, it controls permanent activation of the device
which is used to drill the drawn piece at the end of the presswork operation (all pieces are punched); when
turned to the right, it controls permanent deactivation of the device which is used to drill the drawn piece at the
end of the presswork operation (no pieces are punched); when in mid-position, it provides alternate control of
the device which drills the drawn piece at the end of the presswork operation (one piece is punched and the
next not punched).
"STOP" (56SB10) red mushroom button with mechanical lock: when pressed this causes the slide and blank
holder to stop immediately.
The control console is equipped with a spacer ring which prevents the operator from reaching the danger zone
of the machine during operation.
DANGER:
It is forbidden to use the control console of the press without the safety spacer ring.
The downstroke of the slide in adjustment or single work cycle only takes place if the operator keeps the
"CYCLE START" buttons pressed down at the same time.
DANGER:
It is forbidden to tamper with the electro-mechanical devices which are used to ensure the
contemporaneous activation of the "CYCLE START" buttons. It is also forbidden to carry out
alterations intended to eliminate the need to keep these buttons pressed down by hand.
